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initial import

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This commit is contained in:
Roland McGrath
1995-02-18 01:27:10 +00:00
commit 28f540f45b
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sysdeps/stub/pipestream.c Normal file
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/* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stddef.h>
#include <signal.h>
#include <stdio.h>
#include <errno.h>
/* Open a new stream that is a one-way pipe to a
child process running the given shell command. */
FILE *
DEFUN(popen, (command, mode), CONST char *command AND CONST char *mode)
{
if (command == NULL || mode == NULL || (*mode != 'r' && *mode != 'w'))
{
errno = EINVAL;
return NULL;
}
errno = ENOSYS;
return NULL;
}
/* Close a stream opened by popen and return its status.
Returns -1 if the stream was not opened by popen. */
int
DEFUN(pclose, (stream), register FILE *stream)
{
if (!__validfp (stream) || !stream->__ispipe)
{
errno = EINVAL;
return -1;
}
errno = ENOSYS;
return -1;
}
#ifdef HAVE_GNU_LD
#include <gnu-stabs.h>
stub_warning(popen);
stub_warning(pclose);
#endif /* GNU stabs. */